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Missing validation of JWT signature in `ManyDesigns/Portofino`

Critical severity GitHub Reviewed Published Apr 16, 2021 in ManyDesigns/Portofino • Updated Sep 25, 2023

Package

maven com.manydesigns:portofino-core (Maven)

Affected versions

>= 5.0.0, < 5.2.1

Patched versions

5.2.1
maven com.manydesigns:portofino-dispatcher (Maven)
>= 5.0.0, < 5.2.1
5.2.1

Description

Impact

Portofino is an open source web development framework. Portofino before version 5.2.1 did not properly verify the signature of JSON Web Tokens.
This allows forging a valid JWT.

Patches

The issue will be patched in the upcoming 5.2.1 release.

For more information

If you have any questions or comments about this advisory:

References

@alessiostalla alessiostalla published to ManyDesigns/Portofino Apr 16, 2021
Published by the National Vulnerability Database Apr 16, 2021
Reviewed Apr 16, 2021
Published to the GitHub Advisory Database Apr 19, 2021
Last updated Sep 25, 2023

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS score

0.135%
(50th percentile)

Weaknesses

CVE ID

CVE-2021-29451

GHSA ID

GHSA-6g3c-2mh5-7q6x

Source code

No known source code

Credits

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